Rubber extrusion device and rubber extruded object manufacturing method

A technology of an extrusion device and a manufacturing method, which is applied in the field of rubber extrusion device and rubber extrudate manufacturing, can solve problems such as deviation of extrusion conditions, inability to obtain rubber extrudate, etc., and achieve the effect of suppressing bending

Active Publication Date: 2019-08-23
YOKOHAMA RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are variations in extrusion conditions, etc. for each batch
Due to these deviations, even when extruding unvulcanized rubber using the same die, sometimes the rubber extrudate is bent in an unexpected direction with respect to the extrusion direction, and the desired shape of the rubber extrudate cannot be obtained

Method used

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  • Rubber extrusion device and rubber extruded object manufacturing method
  • Rubber extrusion device and rubber extruded object manufacturing method
  • Rubber extrusion device and rubber extruded object manufacturing method

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Experimental program
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Embodiment Construction

[0026] Hereinafter, the rubber extrusion apparatus and the manufacturing method of the rubber extrudate of the present invention will be described based on the embodiments shown in the drawings.

[0027] Figure 1 to Figure 4 The illustrated rubber extrusion apparatus 1 of the present invention includes a cylindrical cylinder 2 , a screw 3 disposed inside the cylinder 2 , a head 4 disposed at the tip of the cylinder 2 , and a controller 10 that controls the rotational speed of the screw 3 . A die head 5 having an extrusion port 6 is attached to the head 4 .

[0028] The rubber extrusion apparatus 1 includes a moving unit 7 and a sensor 9 that relatively move the die head 5 relative to the head 4 in at least one axial direction along the front end surface of the head 4 . The detection data detected by the sensor 9 is input to the control unit 10 , and the operation of the moving unit 7 is controlled by the control unit 10 . Furthermore, in figure 1 In the figure, the moving ...

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PUM

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Abstract

Provided are a rubber extrusion device and a rubber extruded object manufacturing method with which an unintended curve of a rubber extruded object can be detected and reduced. A rubber extruded object R2 having a desired shape and having a curved amount thereof reduced in an extrusion direction is manufactured in such a way that a deviation d from a preset reference position C of the rubber extruded object R2 extruded from an extrusion port 6 is detected by a sensor 9 and either a position of a mouth piece 5 relative to a head 4 along a front end surface of the head 4 or a rotation speed of ascrew 3 is adjusted by a control section 10 on the basis of the detected data to perform control to correct the deviation d, and such that unvulcanized rubber R1 obtained by mixing and kneading a rubber material R while extruding the same to a front side by means of the screw 3 disposed in a cylinder 2 is fed to an extrusion flow path 4a and is extruded from the extrusion port 6 formed in the mouth piece 5.

Description

technical field [0001] The present invention relates to a rubber extrusion apparatus and a method for producing a rubber extrudate, and more particularly, to a rubber extrusion apparatus and a method for producing a rubber extrudate capable of detecting and suppressing unexpected bending of the rubber extrudate. Background technique [0002] In the manufacture of rubber products such as tires, there is an extrusion process in which unvulcanized rubber is extruded using a rubber extrusion device. In the rubber extrusion device, the unvulcanized rubber is plasticized by a screw built in, and fed into the extrusion flow path formed at the front end of the head. A die head (Japanese: Koukin) having an extrusion port of a desired shape is provided at the front end of the head, and a rubber extrudate molded into a desired shape is produced by passing unvulcanized rubber through the extrusion port (for example, refer to the patent References 1, 2, 3). [0003] If the type of rubb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/92B29C48/30B29K21/00B29C48/07B29C48/12B29C48/31
CPCB29C48/92B29C48/31B29C48/07B29C48/12B29C2948/92076B29C2948/92447B29C2948/9258B29C2948/92171B29C2948/92295B29C2948/92409B29C2948/92571B29C2948/92666B29C2948/92609B29C2948/9279B29C2948/92904B29K2021/00B29B7/38B29B7/7495B29B7/726B29B7/728B29B7/582B29C48/505B29C2948/92885B29C2948/92704B29C48/301B29C48/302
Inventor 西尾悟古林由辉
Owner YOKOHAMA RUBBER CO LTD
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